305-040-521-278

$9.14

Description：CONN EDGE DUAL FMALE 40POS 0.156
Series：305
Mfr：EDAC Inc.
Package：Box

SKU:930300b172f2 Category: Edgeboard Connectors Brand: EDAC Inc.

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Product introduction

305-040-521-278 is listed in the Edgeboard Connectors range at ChipApex. The manufacturer field lists EDAC Inc.. Its product description is CONN EDGE DUAL FMALE 40POS 0.156. Review the specifications below when checking this part for your BOM.

Edgeboard Connectors specifications for 305-040-521-278

Description：CONN EDGE DUAL FMALE 40POS 0.156
Series：305
Mfr：EDAC Inc.
Package：Box
Card Type：Non Specified - Dual Edge
Gender：Female
Number of Positions/Bay/Row：20
Number of Positions：40
Card Thickness：0.054" ~ 0.070" (1.37mm ~ 1.78mm)
Number of Rows：2
Pitch：0.156" (3.96mm)
Read Out：Dual
Features：-
Mounting Type：Panel Mount, Through Hole
Termination：Solder
Contact Material：Copper Alloy
Contact Finish：Gold
Contact Finish Thickness：10.0µin (0.25µm)
Contact Type：Semi Bellows
Color：Green
Flange Feature：Flush Mount, Top Opening, Threaded Insert, 4-40
Operating Temperature：-40°C ~ 105°C

Edgeboard Connectors datasheet and documents for 305-040-521-278

305-040-521-278

Edgeboard Connectors Overview

The EDAC Inc. 305-040-521-278 is a standard card edge connector from the 305 Series, designed for vertical panel mounting applications. It features a dual-row configuration with 40 positions and a contact spacing of 3.96 mm (0.156 inches). The row spacing measures 3.56 mm. The connector accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inches). Electrical specifications include a current rating of 5 A and an insulation resistance of 5 GOhms. The contacts are constructed from copper alloy with gold plating, housed in a green thermoplastic insulator. The operating temperature range spans from -40°C to +105°C.

Edgeboard Connectors Feature Summary

Dual-row female contact configuration for high-density board connections
Vertical panel mount design with solder pin termination
Gold-plated copper alloy contacts for reliable signal transmission
Thermoplastic insulator body compatible with standard PCB thicknesses

Edgeboard Connectors Applications

Industrial control system interconnects
Communication equipment backplanes
Medical device circuit board interfaces
Energy management system modules

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against official EDAC documentation to ensure correct flange and housing variations. Confirm that the required PCB thickness aligns with the 1.57 mm specification before procurement. Check manufacturer availability status as supply chain conditions may affect lead times. Ensure compliance with RoHS directives if required by your project specifications. Validate that the vertical panel mount style matches your mechanical enclosure requirements.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge interface with 40 positions is required. The 3.96 mm pitch suits applications needing robust mechanical stability. Consider the vertical orientation for space-constrained panel installations. Verify that the 5 A current rating meets the electrical load requirements of the target circuit. Ensure the operating temperature range covers the environmental conditions of the deployment site.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, which offers various mounting options and configurations. The series is characterized by its standardized spacing and durable construction suitable for industrial environments. Similar parts in the series may differ in position count or mounting style but share core electrical and mechanical characteristics.